Device for disintegrating clay and separating the stones therefrom



(No Model.)

J. A. BOYD.

DEVICE FOR DISINTEGRATING CLAY AND SEPARATING THE STONES THEREFROM. No.328,756. Patented Oct. 20, 1885.

WITNESSES IWVE-NTOR fad, 203d,

.dttorney N. PETERS. Phclo-Lnbognpher, Walhingmm D. c.

JAMES A. BOYD, OF MINNEAPOLIS, MINNESOTA.

DEVICE FOR DISINTEGRATING CLAY AND SEPARATING THE STONES THEREFROM.

SPECIFICATION forming part of Letters Patent No. 328,756, dated October20, 1885.

Application filed March 24, N85.

To all whom it may concern.-

Be it known that I, JAMES A. BOYD, a citizen of the United States,residing at Minneapolis, in the county of Hennepin and State ofMinnesota, have invented certain new and useful Improvements in Devicesfor Disintegrating Clay and Separating the Stones Therefrom, of whichthe following is a specification, reference being had therein to theaccompanying drawing.

My invention relates to improvements in separators and disintegratorsfor the more perfeet preparation of clayin the manufacture of brick.

The object of my invention is to provide a machine which will separatelarge and small stones from clay, and make it possible to use clay forbrick-making purposes which has been heretofore rejected on account ofthe numerous stones and pebbles mixed therewith.

My invention consists of a suitable frame or casing having a movableperforated floor and a reciprocating frame provided with metallicbrushes adapted to travel over the perforated floor and in closeproximity thereto.

Other valuable and novel features of my invention will be fullydescribed hereinafter and pointed out in the claims.

In the drawing I have shown a longitudinal vertical sectional view of myimproved separator and disintegrator, which will now be described indetail.

A indicates a rectangular frame, properly inclosed, in which issuspended a movable slotted or perforated floor, B, the meshes orperforations of which may be of any desired size.

The floor B is level or slightly inclined from the front to the rear endof the machine, so that the stones can be more readily worked toward therear of the machine and deposited in the chute or spout O.

D is a frame, of wood or other suitable ma terial, the rear end of whichis provided with friction-wheels a, adapted to travel in grooves orrecesses 12 in the sides of the frame of the machine.

E are cross-bars forming part of the frame D, in which the steel brushesF are secured, said brushes being made adjustable by means ofset-screws, or in any convenient or wellknown manner, so that they canbe set nearer Serial No. 160,004. (No model.)

to the perforated floor B as the ends of the brushes become worn away.The front end of the frame D is hung to the crank G, said crank-shaftbeing mounted in suitable bearings in the frame of the machine, andprovided with a band-wheel, H, by means of which mo tion is imparted tothe crank-shaft and to the frame D. The floor B may also bereciproeated, if found desirable.

I is a hopper or feed box, into which the clay is thrown, and is workedtoward the rear of the machine by means of the brushes F, the finerportions of the clay falling through the open floor onto the endlesstraveling belt or conveyer K,which conducts it to the brickpressingmachine or to any other desired point. The pounding and scraping orsweeping action of the brushes F on the clay tends to break up any lumpsthat may be in the clay, removes the clay from the stones or pebbles,and, as before indicated,works the stones or pebbles over the rear endof the floor into the chute or spout G at the rear end of the machine.

In pulverizing or disintegrating clay containing a large quantity ofstones it is very destructive to the ordinary machines or disintegratorsin which rotary beaters or brushes are used; but by using the deviceherein de scribed I am enabled to remove the large and small stones withvery little wear to the machine.

This device may be so constructed-i. 6., the door may be made withlarger 0penings,so that the machine can be used for the sole purpose ofbreaking the lumps of clay and removing the larger stones, the clay andsmaller stones and pebbles which have found their way through theperforated floor being conveyed by the endless carrier K to arotating-screen-cylinder provided with heaters and brushes in which theclay is reduced to a finely powdered or disintegrated condition andseparated from the small stones and pebbles, such a machine being fullydescribed and claimed by me in an application filed in the United StatesPatent Office March 12, 1885, Serial No. 158,518.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, 1s-

1. A machine for separating clay from stones, consisting of a casingprovided with a perforated floor, and a reciprocating frame havingbrushes secured thereto,and adapted to travel to and fro over theperforated floor,as setforth.

2. In a machine for disintegrating clay and separating the stonestherefrom, a casing having an inclined perforated floor, a reciprocatingframe provided With brushes adapted to slide in Ways in the frame orcasing of the machine, and a crank-shaft attached to one end of saidframe,whereby a sweeping and pounding action is imparted to the clay, asset forth.

3. In a machine for disintegrating clay and separating the stonestherefrom, a reciprocating frame provided with adjustable metallicbrushes, in combination with a perforated floor, as set forth.

JAMES A. BOYD.

WVitnesses:

SAMUEL P. LOVER, HENRY N. TIMOLAT.

